The Fiat TwinAir 1.4 is an 875 cc, inline‑two turbocharged petrol engine produced between 2010 and 2018. It features a DOHC 8‑valve layout with MultiAir electro‑hydraulic valve control and direct fuel injection. This innovative design delivers surprising power from a small displacement, using turbocharging and precise air management for efficiency.
Fitted to models such as the 500, Panda, and Lancia Ypsilon, the TwinAir 1.4 was engineered for urban agility and low emissions. Emissions compliance was achieved through advanced engine management and a close‑coupled catalytic converter, meeting Euro 5 and Euro 6 standards.
One documented concern is potential failure of the timing chain tensioner, which can lead to chain noise or slippage. This issue, noted in Fiat Technical Service Bulletin TSB‑13‑066, is often linked to oil pressure fluctuations and was addressed in later production with a revised tensioner design.
Production years 2010–2013 meet Euro 5 standards; 2014–2018 models meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/9012).
The Fiat TwinAir 1.4 is an 875 cc inline‑two turbocharged petrol engine engineered for city cars (2010-2018). It combines MultiAir valve control with direct injection to deliver responsive power from a compact, lightweight unit. Designed to meet Euro 5 and Euro 6 standards, it balances spirited performance with low fuel consumption.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 875 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑2, DOHC, 8‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 80.5 mm × 86.0 mm | |
| Power output | 63–77 kW (85–105 PS) | |
| Torque | 145–145 Nm @ 2,000 rpm | |
| Fuel system | Gasoline direct injection (GDI) | |
| Emissions standard | Euro 5 (2010–2013); Euro 6 (2014–2018) | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single turbocharger (Garrett) | |
| Timing system | Chain‑driven | |
| Oil type | Fiat 9.55535‑DS1 (SAE 5W‑40) | |
| Dry weight | 90 kg |
The TwinAir's two-cylinder design provides a unique, torquey character ideal for city driving but requires strict adherence to 15,000 km oil change intervals using Fiat 9.55535-DS1 (5W-40) to protect the chain tensioner and MultiAir system. Premium unleaded (95 RON minimum) is critical due to direct injection and turbocharging. The timing chain tensioner, subject to TSB 13-066, should be inspected for noise or wear during major services. The compact design makes some repairs, like turbo replacement, labor-intensive.
Oil Specs: Requires Fiat 9.55535-DS1 (5W-40) specification (Fiat Workshop Manual 310A).
Emissions: Euro 5 certification applies to 2010–2013 models; Euro 6 for 2014–2018 (VCA Type Approval #VCA/EMS/9012).
Power Ratings: Measured under ECE R85 standards. 77 kW output requires 95 RON fuel (Fiat Group PT-2017).
Fiat Technical Information System: Docs 310A, TSB 13-066
VCA Type Approval Database (VCA/EMS/9012)
UNECE Regulation No. 85 (Engine Power Measurement)
The Fiat TwinAir 1.4 was used across Fiat's City platforms with transverse mounting. This engine received minor platform-specific adaptations-lighter ancillaries in the 500-and a significant ECU revision in 2014 for Euro 6 compliance, creating no major interchange limits for core components. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, near the gearbox flange (Fiat Workshop Manual 310A). The engine is visually unmistakable: a very compact, two-cylinder unit with a prominent black plastic intake manifold featuring "TwinAir" and "MultiAir" branding, and a single Garrett turbocharger mounted high on the exhaust side. Critical differentiation from 1.2L 4-cylinder engines: Half the cylinder count and a unique firing order sound. The 8th VIN digit is often 'A' for TwinAir variants.
The TwinAir 1.4's primary reliability consideration is timing chain tensioner wear, with documented cases leading to noise or slippage. Fiat TSB 13-066 notes this issue, while owner feedback often notes it around 80,000 km. Use of correct oil grade and addressing any chain noise promptly make long-term reliability excellent.
Analysis derived from Fiat technical bulletins (2010-2018) and owner-reported data aggregated from official dealer networks. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FIAT TWINAIR-1-4.
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Regulation (EC) No 715/2007
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